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Adding multiple cylinders into the same model PDE Toolbox

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Miles Hao Peng Su
Miles Hao Peng Su 2022-12-4
评论： Miles Hao Peng Su 2022-12-4
Hi, I am trying to construct a 3D model for electrical analysis later. I have 3 cylinders and 1 hollow cylinders.
When I am trying to make all of them into one model, I encountered the following error:
which correspond to this line:
May I know how to add all my shapes into the same model?
Thank you!!
Here is my code:
Building the base Stratum Corneum and Variable Skin
SC3d = multicylinder(basesize,hSC) %create SC
VS3d = multicylinder(basesize,hVS, "Zoffset",-hVS) %create VS
Sense3d = multicylinder(R1, hEL, "Zoffset",hSC) %create sensor
Inject3d = multicylinder([R1+R2 R3], hEL, "Zoffset", hSC) %create inject
model = createpde
model.Geometry = SC3d + VS3d
pdegplot(model,"CellLabels","on","FaceAlpha",0.5)

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采纳的回答

VBBV
VBBV 2022-12-4
model.Geometry = [SC3d VS3d]
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Miles Hao Peng Su
Miles Hao Peng Su 2022-12-4
Thanks! Now it did solve my question - however I encountered some problem with the inject3d.
I want it to be a hollow cylinder with some offset z, may I know if this is doable?
This error shows up:
with this line of code:
Inject3d = multicylinder([R1+R2 R3], hEL, "Void", [true false], "Zoffset", hSC) %create inject
Thanks!
Miles Hao Peng Su
Miles Hao Peng Su 2022-12-4
Hi, also, this error showed up when using the concatenation operator:
model.Geometry = [SC3d VS3d Sense3d]
is there another way for me to use this?

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